The document summarizes new regulations under MARPOL Annex V that will prohibit the disposal of ship-generated garbage at sea beginning January 1, 2013. Shipboard garbage will need to be segregated and sent to port waste reception facilities for disposal. Certain cleaning agents may still be discharged if non-harmful. Discharge criteria vary depending on whether the ship is outside or within a MARPOL special area, which includes regions like the Mediterranean, Baltic, and Wider Caribbean.